DTC Diagnosis Procedure
WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC PRIORITY
If DTC P26A3 is displayed with DTC P26A5, P26A6, and/or P26A7 first perform the trouble diagnosis for DTC P26A5, P26A6, and/or P26A7.
Is applicable DTC detected?
YES
Perform diagnosis of applicable. Refer to DTC Index .
NO
GO TO 2.
- CHECK MULTI-WAY CONTROL VALVE MOTOR OUTPUT SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect multi-way control valve harness connector and ECM harness connector.
- Check the continuity between multi-way control valve harness connector and ECM harness connector.
+
-
Continuity
Multi-way control valve
ECM
Connector
Terminal
Connector
Terminal
F92
1
F79
58
Existed
2
57
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace error-detected parts.
- CHECK MULTI-WAY CONTROL VALVE MOTOR
Check the multi-way control valve motor. Refer to Component Inspection (Multi-way Control Valve) .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace multi-way control valve. Refer to Removal and Installation .